... this case ,it is easy to use , it has big filtering area and low rate of clogging , if filters fast without ... 10 inch , 20 inch , 30 inch , 40 inch . The material of filter core has teflon , polysulfone , nylon ,pp and acetate .The hole ... are hydrophilcity (suitable for liquid) hydrophobicity (suitable for hydrophobicity) ,use can can use at his option .main parameter parameter type μm filtering ...